Blank feeding/processing apparatus

Abstract

Provided is a blank feeding/processing apparatus that includes a pressing unit for pressing a non-contact section of a conveyor belt to form an inclined section in the non-contact section when a box is folded. The apparatus for feeding and processing a blank having a plate shape, includes: a feeding unit including a lower feeding unit including a conveyor belt for conveying the blank and a plurality of feeding rollers for moving the conveyor belt, including a non-contact section that does not contact the feeding rollers in the conveyor belt, and arranged below the blank and an upper feeding unit arranged above the blank; and a pressing unit for protruding a tab of the blank to be processed, by applying a pressure in the non-contact section of the conveyor belt to form an inclined section in the conveyor belt.

The invention claimed is: 
     
       1. An apparatus for feeding and processing a blank having a plate shape, the apparatus comprising:
 a feeding unit comprising: a lower feeding unit comprising a conveyor belt for conveying the blank and a plurality of feeding rollers for moving the conveyor belt, the conveyor belt comprising a non-contact section that does not contact the feeding rollers, the lower feeding unit being arranged below the blank; and an upper feeding unit arranged above the blank; 
 a pressing unit for protruding a tab of the blank that is to be processed, by applying a pressure on the non-contact section of the conveyor belt to form an inclined section of the conveyor belt; 
 a tension adjusting unit comprising: a connection member, one end of which is rotatably mounted on a lower frame of the feeding unit; a first movement roller mounted on an opposite end of the connection member and being configured to move upwards and downwards, the first movement roller being connected to the conveyor belt of the lower feeding unit; and a first resiliency adjusting mechanism for resiliently supporting the first movement roller downwards with a compression coil spring, for adjusting a tension of the conveyor belt; and 
 a support unit arranged on an opposite side of the pressing unit with reference to the conveyor belt, for supporting the non-contact section of the conveyor belt, 
 wherein the support unit is detachably mounted on the feeding unit to be separated from the feeding unit when the pressing unit presses the non-contact section of the conveyor belt. 
 
     
     
       2. The apparatus of  claim 1 , wherein the pressing unit comprises:
 a movable member arranged in a vicinity of the non-contact section and configured to be moved upwards and downwards; 
 a main roller mounted on the movable member; and 
 an auxiliary roller arranged on a rear side of the main roller and mounted on the movable member. 
 
     
     
       3. The apparatus of  claim 2 , wherein the main roller is arranged in the vicinity of the non-contact section of the conveyor belt, and a diameter of the main roller is larger than a vertical interval of a conveyor belt of the upper feeding unit. 
     
     
       4. The apparatus of  claim 2 , wherein the pressing unit further comprises: a displacement adjusting unit for adjusting a vertical movement amount of the movable member. 
     
     
       5. The apparatus of  claim 1 , wherein the tension adjusting unit further comprises:
 a second resiliency adjusting mechanism and a third resiliency adjusting mechanism arranged above the upper feeding unit and being spaced apart from each other; 
 a second movement roller mounted between the second resiliency adjusting mechanism and the third resiliency adjusting mechanism, the second movement roller being configured to be moved upwards and downwards, and the second movement roller being connected to a conveyor belt of the upper feeding unit; and 
 a pair of fixing rollers arranged on opposite sides of the second movement roller, for pressing the conveyor belt of the upper feeding unit arranged on opposite sides of the second movement roller downwards. 
 
     
     
       6. The apparatus of  claim 1 , wherein the upper feeding unit comprises: a plurality of roller hangers formed to be inclined downward relative to a forward movement direction of the blank, wherein an end of each of the roller hangers is resiliently rotatably mounted, and a feeding roller of the upper feeding unit is mounted on an opposite end of each of the roller hangers.